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Title: High Energy Electron Signals from Dark Matter Annihilation in the Sun

High Energy Electron Signals from Dark Matter Annihilation in the Sun In this paper we discuss two mechanisms by which high energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.
Authors: ; ; ; ; ; ;
Publication Date:
OSTI Identifier:OSTI ID: 1038428
Report Number(s):SLAC-PUB-14939
Journal ID: ISSN 1550-7998; PRVDAQ; arXiv:0910.1839; TRN: US1201863
DOE Contract Number:AC02-76SF00515
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology; Journal Volume: 82; Journal Issue: 11
Research Org:SLAC National Accelerator Laboratory (SLAC)
Sponsoring Org:USDOE
Country of Publication:United States
Language:English
Subject: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANNIHILATION; ELECTRONS; NONLUMINOUS MATTER; SPECTRA; SUN Phenomenology-HEP,HEPPH